Cook pasta until al dente, drain.,While pasta is cooking, heat oil in a heavy pan.,Add whatever youre using out of garlic, chilli, tuna, tomatoes, and olives to the hot oil, then add hot pasta and stir well.,You want everything to be fresh, so just fry it enough to heat it before adding the pasta, not to actually cook it.,______,Season well to taste.,Stir through the arugula/parsley and serve with parmesan and lemon juice squeezed on top.